Back to Search Start Over

The effect of V-alloying on microstructure peculiarities of high-nitrogen austenitic steels subjected to high-pressure torsion.

Authors :
Maier, Galina
Moskvina, Valentina
Panin, Victor E
Fomin, Vasily M
Source :
AIP Conference Proceedings; 2020, Vol. 2310 Issue 1, p1-5, 5p
Publication Year :
2020

Abstract

The effect of high-pressure torsion on the microstructure was studied in high-nitrogen austenitic steels with different vanadium content: Fe-23Cr-19Mn-0.2C-0.5N, Fe-19Cr-21Mn-1.3V-0.3C-0.8N and Fe-18Cr-23Mn-2.6V-0.3C-0.8N, wt %. Independently of the chemical composition of steels, high-pressure torsion causes the refinement of the microstructure of high-nitrogen steels due to the formation of a high density of twin boundaries, dislocations and shear bands. Vanadium-alloying promotes the change of dominating deformation mechanism from planar slip and twinning (vanadium-free steel) to slip with pronounced shear band formation (vanadium-alloyed steels) under high-pressure torsion. Increase in vanadium concentration in steels provides more misoriented microstructure in comparison with V-free steel. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0094243X
Volume :
2310
Issue :
1
Database :
Complementary Index
Journal :
AIP Conference Proceedings
Publication Type :
Conference
Accession number :
147605107
Full Text :
https://doi.org/10.1063/5.0034061